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A novel digital voltage controller for boost PFC converters is proposed in this paper. If a fast voltage compensator is applied to control the DC output voltage, the DC output voltage ripple, pulsating at twice the grid frequency, causes a third harmonic of considerable magnitude in the line current. The new controller samples the DC-bus voltage at all zeroes of its ripple, resulting in a fast voltage...
Although complete compensation is only possible using true active filters, resistive shunt harmonic impedances (SHI) have been shown to provide a considerable reduction of the harmonic propagation. In this paper, the harmonic mitigation potential of a resistive SHI is discussed concerning its influence on the voltage distortion profile along a typical distribution feeder, with the location of the...
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